JPH03223084A - Floor adjusting device for elevator - Google Patents

Abstract

PURPOSE:To keep a level difference between a cage floor and a platform floor within a tolerance by pivotally supporting a sill plate in an elevating passage end part of the platform floor, and detecting a sunk quantity of the cage floor, and changing the inclination of the sill plate in response to the detection. CONSTITUTION:When a forklift 3 loaded with a work 4 gets into a cage 1 and a cage floor 2 is sunk with their weight, an arm 13 lowers, and a cam 14 is engaged with a down command switch 12. The down command is thereby generated to operate a driving machine 8, and a jack 9 is lowered, and a sill plate 6 is turned around of a pin 7 so that the other end thereof inclines as shown by a real line. Simultaneously, an arm 10 is lowered, and when the down command switch 12 is removed from the cam 14, the sill plate 6 is stopped. Under this condition, the face of the cage floor 2 and the face of the other end of the sill plate 6 coincide with each other to eliminate a level difference, and the folklift 3 can get out of the cage without a hindrance.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for aligning an elevator car floor surface with a landing floor surface.

[Prior Art] When a forklift or the like is used to load cargo into a cargo elevator car, the floor of the car sinks due to the load, creating a level difference between the car and the landing floor, which may impede the forklift's removal. . In order to cope with this, when the car floor sinks due to loading and the level difference with the landing floor exceeds the allowable range, an inching operation (an operation that instantly operates the hoisting motor to raise and lower the car a small distance) is automatically performed. The height difference was corrected so that it fell within the allowable range.

[Problem to be Solved by the Invention] In the conventional elevator floor alignment device as described above, the sinking of the car floor is corrected by inching operation, so in large elevators, the response to inching operation is poor. Unfortunately, it is difficult to keep the above-mentioned level difference within an allowable range, and this is especially noticeable with hydraulic nylon vators.
The problem is that there may be cases where it becomes impossible to respond. Another problem is that the inching operation consumes a large amount of power.

This invention was made in order to solve the above-mentioned problems, and is an elevator floor alignment device that can easily keep the level difference between the car floor and the landing floor within an allowable range, and can also reduce power consumption. The purpose is to provide

[Means for Solving the Problems] An elevator floor alignment device according to the present invention pivots a sill plate to the hoistway edge of a landing floor, detects the position of the car floor, and determines the amount of sinking of the car floor. The sill plate is tilted in accordance with the movement of the shaft, and the position of the hoistway side end thereof is displaced.

[Function] In this invention, since the inclination of the landing sill plate is changed according to the amount of depression of the car floor, the hoistway side end of the sill plate coincides with the heel floor. Further, the driving device for the sill plate only needs to have a circular force capable of displacing the sill plate.

[Example code] The figure is a longitudinal side view showing one embodiment of the present invention.

In the diagram, (1) is the elevator car, (2) the elevator car,
(3) is a forklift loaded with cargo (4) and loaded onto (1), (5) is the landing floor, (6) is the landing floor (5)
A sill plate is arranged along the landing floor (5) at the edge of the hoistway, and one end is pivotally supported to the landing by a pin (7), and the sill plate (8) is connected near the other end of the sill plate (6). (10) is an arm connected to the other end of the sill plate (6) and extends downward; (11) is a lift command switch attached to the arm (10); , (12) is the same lowering command switch, (13) the arm fixed to the heel and floor (2), (1
4) is provided at the lower end of the arm (13) and the switch (u) (1
2) is a cam that operates.

In the elevator floor alignment device configured as described above, the sill plate (6) is normally located at the position shown by the chain line.
Its surface coincides with the landing floor (5) surface. At this time,
The cam (14) is located between the up command switch (11) and the down command switch (12).

Now, the forklift (3) loaded with luggage (4) is moving (
1) and when the car floor (2) sinks due to their weight, the arm (12) lowers and the cam (13) engages the lowering command switch (12). Now, a lowering command is issued, and the drive machine (8) operates to lower the jack (9). Accordingly, the sill plate (6) rotates around the pin (7), and the other end descends to tilt as shown by the solid line. As a result of this operation, the arm (13) is lowered, and when the lowering command switch (12) disengages from the cam (14), the lowering command disappears and the sill plate (6) also stops.
Since the surface of the car floor (2) and the surface of the other end of the sill plate (6) match and there is no difference in level, the forklift (3) can exit from the heel (1) without any trouble.

The forklift (3) comes out of the heel (1) and lifts the basket (1).
) decreases and the car (1) floats up, the cam (14) rises in the opposite manner to the above, and the lift command switch (11
), and by the operation of the drive machine (8) and hydraulic jack (9), the other end of the sill plate (6) rises to a position where it coincides with the surface of the car floor (2) and stops.

Note that the drive machine (8) and the hydraulic jack (9) only raise and lower the sill plate (6), so unlike the inching operation that raises and lowers the entire heel (1), their power consumption is light. There are few.

[Effects of the Invention] As explained above, in this invention, the sill plate is pivotally supported on the hoistway edge of the landing floor, the amount of sinking of the car floor is detected, and the inclination of the sill plate is changed accordingly. As a result, the level difference between the car floor and the end of the sill plate, that is, the landing floor, can be reliably kept within an allowable range with an inexpensive configuration, and a forklift or the like can get out of the car without any trouble.

Further, since the sill plate driving device only needs to displace the sill plate, the capacity can be reduced.

[Brief explanation of drawings]

The figure is a longitudinal sectional side view showing an embodiment of an elevator floor alignment device according to the present invention. In the figure, (1) is the basket, (2) is the platform, (5) is the landing floor, (6) is the sill plate, (7) is the pin, and (8) is the drive device (
(driver), (9) is a drive device (hydraulic jack), (11
) is the detection mechanism (up command switch), (12) is the detection mechanism (down command switch), (14) is the detection mechanism (cam)
It is.

Claims (1)

[Claims] a sill plate disposed along the hoistway edge of the landing floor along the hoistway floor surface and whose end on the hoistway side is pivotally supported so as to be able to be raised and lowered; and a detection mechanism that detects the floor position of the car that is landing on the hoistway. and a drive device that tilts the sill plate in accordance with the output of the detection mechanism and displaces the position of the end on the hoistway side.